public void get(View view){     
                               try {
                               asPt = new ProgressTask().execute(null,null,null);  
                               Log.d("Watcher","Get finished");         
}
            catch (Exception e) {                       
                    e.printStackTrace();                
                    Log.e("Watcher","Get Exception");       
        }       
    }
当我永远不会打印“完成”行cancel(Boolean)。AsyncTask asPt为什么?它也不会在此方法中捕获异常。